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2021 Mustang GT Vehicle Profile & Build Thread
HPDE/Track 

Daily driver. HPDE. 6 to 8 weekend events per season

Gray Ghost GT

Specs & Mods

Ownership Status
Currently Own
Year
2021
S550 Model
GT
Transmission
Manual
Mods - Handling
• BMR Adjustable Sway Bar Kit with Bushings, SB760 - Front (SB044) And Rear (SB762)
• BMR Vertical Link, Delrin/Spherical, TCA046
• BMR Toe Rods, Rear, On-Car Adjustable, Rod Ends, TR005
• BMR Camber Link, Fixed, Poly/Bearing, Billet Aluminum, UTCA057
• BMR IRS Subframe Support Brace System, CB762
• BMR End Link Kit for Front and Rear Sway Bar, 390540
• Brembo 6 Piston Front Calipers with 15" Rotors, M-2300-V
• Ford Performance Knuckle to Toe Link Delrin Spherical Bearing, M-5A460-M
• Koni Sport Yellow Front and Rear Struts and Shocks, Front Struts: 87411589, Rear Shocks: 82411293
• Steeda Adjustable Bump Stops, 555-4445
• Steeda Billet Rear Shock Mounts – 12mm, 555-8152
• Steeda Differential Mount Bushing System, 555-4442
• Steeda Dual Rate Lowering Springs, 555-8246
• UPR Mustang Pro Series Urethane Street & Strip Adj Motor Mount Kit, 3013-11
• Vorshlag Front Brake Cooling Deflectors (Base GT)
• Alignment Specs: -2.4* (F) and -1.6* (R), Caster (F) 7.3*, Toe (Front) out - 0.10*, and (Rear) in + 0.20*
• Hoosier R7 295/30ZR19 and 315/30ZR19
Mods - Power
• Cervini's C-Series Mustang Upper & Lower Grille Kit (2018-2023)
• Ford Performance (Borla) Performance Exhaust System, M-5230-M8SCA
• Ford Performance Radiator, FR3Z-8005-G
• Ford Performance Strut Tower Brace, 399281
• Ford Performance “GEN 2” Water Pump Kit, M-8501-M52A with MRR Lightweight Water Pump Pulley
• Driver and Passenger Brey Krause Clip-In Lap Belt Mount, R-9155
• J&L 3.0 Oil Separator - Passenger Side, 402465
• Mishimoto Coolant Expansion Tank
Mods - Exterior
• Ford Performance Front and Rear Tow Hooks, M-17954-RB
• Scott Drake Wicker Bill Rear Spoiler
• Steeda Trailer Tie Down Kit, 555-5202
Mods - Interior
• Harness Bar
• MGW Shifter
• Schroth 4-Point Race Harness Belts
• Watson Racing S197/S550 Harness Lap Belt Mount, WR-HARNESSMNT
Background & Plans
NA 5.0 (No Modifications) to include the powertrain. However, I have the following plans in 2025:

1. Ford Performance IRS Ring and Pinion Gear Kit; 3.55 Gear Ratio & Ring and Pinion Installation Kit
2. Ford Performance Mustang GT500 Aluminum Oil Pan and Pump Kit, M-6675-M52S (2011-2023)
3. Ford Performance Super 8.8-Inch IRS Rear Axle Bearing and Seal Kit
4. Ford Performance T2R Torsen Differential; 34-Spline 8.8-Inch
5. Kenny Brown Performance Mustang S550 Differential Cooler Kit
6. Kenny Brown Front Brake Cooling Ducts
7. Harrop Ford Mustang GT S550 Engine Oil Cooler, #99-AKIT15178
8. MMR Head Cooling Mod (HCM) for 5.0 Coyote with Black Braided Hose and AN Fittings, MMR-455478
9. Steeda GForce Performance Renegade Half Shaft Axles for 2015-2023, FOR10107A
10. Steeda Mustang GT 3.5" 1350 Series Aluminum Driveshaft Manual Transmission (2018-23), 10202303S
11. Steeda Mustang GT MaxFlow Open Cold Air Intake (2015-23), 555-3228
12. Steeda Heatshield Products OEM 2018 Mustang GT Intake Manifold Heat Shield 5.0L Coyote, 140014
13. Steeda StopTech Mustang GT Performance Package Stainless Steel Front Brake Lines
14. Steeda Mustang GT Performance Pack 380 x 34mm Front and 330 x 25mm Rear Two-Piece Rotor Set
15. TSS Crankshaft Gear
16. Vengeance Stage 2 Ceramic Clutch, Billet Flywheel 23 Spline and Ford OEM Slave Cylinder DM2-07
27. Quik-Latch (2022 Shelby GT500) QL-50-LP/BP Black Cerakote Finish Low Profile Quick Release Hood Pin Kit

Motor Oil: Castrol Synthetic 5W-40 Full Synthetic
Transmission Fluid: Pennzoil Synchromesh or BG Syncro Shift II or Red Line (31004) Full Synthetic (DCTF)
Differential Fluid: Redline 75W140 GL-5 Gear Oil
Brake Fluid: Motul 600 DOT 4
Brake Pads: GLOC R16 (Front) and R12 (Rear), Carbotech XP12/XP10, Hawk DTC70/DTC60
Clutch Fluid: ATE Super Blue DOT 4
Radiator: Redline Water Wetter
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Car information

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S550 Mustangs
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Gray Ghost GT
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